| 1 | — |  | Unexplainable | Vox | |
| 2 | — |  | Ologies with Alie Ward | Alie Ward | |
| 3 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | 1 |  | Radiolab | WNYC Studios | |
| 6 | 1 |  | Curious Cases | BBC Radio 4 | |
| 7 | 11 |  | More or Less | BBC Radio 4 | |
| 8 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 9 | 45 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 10 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 11 | 9 |  | Discovery | BBC World Service | |
| 12 | 5 |  | All In The Mind | ABC | |
| 13 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 14 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 15 | 34 |  | Alive Again | iHeartPodcasts | |
| 16 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 17 | 4 | B | Boring History for Sleep | Velvet | |
| 18 | 26 |  | Science Weekly | The Guardian | |
| 19 | 151 |  | Scotland Outdoors | BBC Radio Scotland | |
| 20 | 13 |  | The Episodic Table of Elements | T. R. Appleton | |
| 21 | 16 | T | The Grass Factor | The Grass Factor | |
| 22 | 29 |  | The Science Show | ABC | |
| 23 | 2 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 24 | 61 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 25 | 42 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 26 | 2 |  | The Quanta Podcast | Quanta Magazine | |
| 27 | 3 | O | Our Changing World | RNZ | |
| 28 | 13 |  | CrowdScience | BBC World Service | |
| 29 | 72 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 30 | 14 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 31 | 18 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 32 | 94 |  | Intelligent Design the Future | Discovery Institute | |
| 33 | 19 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 34 | 135 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 35 | 18 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 36 | 59 |  | The Michael Shermer Show | Michael Shermer | |
| 37 | — | S | Science Powering Tomorrow | GNS Science | |
| 38 | — |  | Skeptics in the Pub Online Podcast | Skeptics in the Pub Online | |
| 39 | — | T | The Science Show - Separate stories podcast | ABC | |
| 40 | — |  | Weather Geeks | Weather Group Television | |
| 41 | — | T | This Week in Pediatric Oncology | Solving Kids' Cancer | |
| 42 | — | T | Tiny Vampires | Raven Forrest Fruscalzo | |
| 43 | — | W | WeMartians Podcast | Jake Robins | |
| 44 | 22 |  | Science Vs | Spotify Studios | |
| 45 | 16 |  | Blurry Creatures | Blurry Creatures | |
| 46 | 27 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 47 | 24 | B | Big Sky Country | Bush Heritage Australia | |
| 48 | 22 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 49 | 70 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 50 | 115 |  | Nature Podcast | Springer Nature Limited | |
| 51 | 23 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 52 | 25 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 53 | 22 |  | Short Wave | NPR | |
| 54 | 122 | O | Open Country | BBC Radio 4 | |
| 55 | — |  | Decouple | Dr. Chris Keefer | |
| 56 | 140 |  | Science Friction | ABC | |
| 57 | 22 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 58 | 141 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 59 | — | A | Addressing Alopecia Areata | medthority | |
| 60 | 133 |  | Future Ecologies | Future Ecologies | |
| 61 | 13 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 62 | — | C | Coffee and Control | Lucy Hodgins | |
| 63 | 31 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 64 | 14 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 65 | 24 | F | Food Safety Matters | Food Safety Magazine | |
| 66 | — |  | The Future of Everything | Stanford Engineering | |
| 67 | 31 | G | Gretchen Miller | Homeground | Gretchen Miller | Homeground | |
| 68 | 30 |  | The Bulletproof Musician | Noa Kageyama | |
| 69 | 30 | D | Don't Eat Poop! A Food Safety Podcast | Food Safety Specialists: Matthew Regusci and Francine L Shaw | |
| 70 | 30 |  | The Peter Byck Show | Peter Byck | |
| 71 | — |  | Flash Forward | Rose Eveleth | |
| 72 | — |  | Pediatric Research Podcast | Nature Publishing Group | |
| 73 | — | N | NPP BrainPod | Springer Nature | |
| 74 | — | N | NASA Archive Audio - Voices of the Void | NASA | |
| 75 | 32 |  | The world, the universe and us | New Scientist | |
| 76 | 34 | N | New Scientist CultureLab | New Scientist | |
| 77 | 14 |  | SciShow Tangents | Complexly | |
| 78 | 32 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 79 | 21 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 80 | 35 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 80 | 7 | P | Psychology | Yale School of Medicine | |
| 81 | 17 |  | Babbage from The Economist | The Economist | |
| 82 | 35 |  | Mysterious Universe | 8th Kind | |
| 83 | 27 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 84 | 2 |  | BBC Inside Science | BBC Radio 4 | |
| 85 | 32 |  | Unexpected Elements | BBC World Service | |
| 86 | 12 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 87 | 22 |  | Science Friday | Science Friday and WNYC Studios | |
| 88 | 36 |  | The Psychology Podcast | iHeartPodcasts | |
| 89 | 29 |  | Need To Know | Bryce Zabel | |
| 90 | 28 |  | Science In Action | BBC World Service | |
| 91 | 21 |  | Astrum Space | Astrum | |
| 92 | 26 |  | Outside/In | NHPR | |
| 93 | 34 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 94 | 39 |  | Rare Earth | BBC Radio 4 | |
| 95 | 34 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 96 | 28 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 97 | 6 | W | What The Duck?! | ABC | |
| 98 | 41 |  | BrainStuff | iHeartPodcasts | |
| 99 | 27 |  | Podcast UFO | Martin Willis | |
